In 1932 he established the magazine Herpetologica, the quarterly journal of the Herpetologists' League, an association of several notable herpetologists in the USA, which he co-founded in 1936. He was also the publisher of a second magazine - Scientists Forum.

In 1982 the Major Chapman Grant Hall of Ecology in the Museum of Natural History in San Diego was named in honour of him. In 1983 he died at the age of 95 in a nursing home. He left one son - Ulysses S. Grant V (b. 20 September1920).